In environments in which a file is named, a file's name and the path to the file's directory must uniquely identify it among all other files in the computer systemâno two files can have the same name and path. Where a file is anonymous, named references to it will exist within a namespace.
On May 19, 1962, actress Marilyn Monroe sang âHappy Birthdayâ to U.S. President John F. Kennedy during an event celebrating JFKâs 45 th birthday at the Madison Square Garden in New York City. Monroe, wearing a skin-tight dress covered in rhinestones, sang the ordinary birthday song in such a sultry, provocative manner that it made headlines and became an iconic moment of the 20 th century.
 Leaving on a Jet Plane  is a song written by John Denver in 1966 and most famously recorded by Peter, Paul and Mary.The original title of the song was Babe, I Hate to Go but Denver's then producer Milt Okun convinced him to change the title. The song prompted litigation involving the British group New Order. 2  The band's single  Run 2  (1989) was the subject of a lawsuit brought by John Denver, who argued that its wordless guitar break was based on his Leaving on a Jet Plane.